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NE20E-S2 V800R010C10SPC500 Configuration Guide - LAN Access and MAN Access 01

This is NE20E-S2 V800R010C10SPC500 Configuration Guide - LAN Access and MAN Access
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Maintaining MAC Address Tables

Maintaining MAC Address Tables

You can monitor MAC address table usages on IPU and LPUs and then set a proper usage threshold for MAC address tables to improve network security and stability.

Monitoring the Usage of MAC Address Tables

You can monitor MAC address table usage to ensure that the device runs stably, because a large number of MAC addresses are configured on or learned by the device.

Procedure

  • Run display mac-address-usage [ slot slot-number ]

    The usage of an MAC address table is displayed.

    NOTE:

    You can run the mac-address-usage threshold threshold [ slot slot-number ] command to set a used threshold of a MAC address table as required.

    The display mac-address-usage and mac-address-usage threshold commands are supported only on the Admin-VS.

Disabling a Device from Emptying a MAC Address Queue

Context

A device needs to learn MAC addresses after being added to a Layer 2 network. When MAC address entries are deleted automatically through associating with other modules or deleted manually, a device empties the MAC address queue by default. During the emptying process, the device cannot learn new MAC addresses. To allow the device to learn new MAC addresses and at the same time delete unneeded MAC addresses, disable the device from emptying the MAC address queue.

After a device is disabled from emptying a MAC address queue, the MAC addresses in the queue may fail to be deleted. To allow a device to delete the dynamic MAC address entries, run the reset mac-address command on the device.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run mac-address queue-emptying disable

    The device is disabled from emptying a MAC address queue.

    This command is supported only in the Admin-VS.

  3. Run commit

    The configuration is committed.

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Updated: 2019-01-02

Document ID: EDOC1100055378

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